Chair-rotating control mechanism applied to sport apparatus

ABSTRACT

Chair-rotating control mechanism applied to sport apparatus, wherein driven gear sector is to drive the connected eccentric shaft to rotate, chair pivoted with an eccentric shaft is driven by rotating shaft of pedal or decelerating motor, or both of them move together as power source, this control mechanism can be applied to bicycle, exercising bicycle and AB chair to control rotation of chair, so that it can turn around waist and hip of rider when riding on it to do exercise.

BACKGROUND OF THE INVENTION

1) Field of the Invention

This invention relates to chair-rotating control mechanism applied to sport apparatus, wherein the chair pivoted with an eccentric shaft is driven by rotating shaft of pedal or electric motor of bicycle, exercising bicycle and AB chair, so that it rotates while riding on it to do exercise.

2) Description of the Prior Art

There are many types of sport apparatus, however, most of them are applicable to indoor exercise, such as indoor exercising bicycle, many people use magnetic exercising bicycle due to its easy operation, which only uses an adjuster to adjust distance between magnetic force tractions in magnetic field, counteractive force of pedal gets resistance so that user can adjust properly basing on the imposed force.

The above said exercising bicycle can only exercise your legs, however, waist and hip of human body must rely on hula hoop, no other apparatuses are available to exercise these parts of body, which is at most a vibrating massage to massage waist or hip, so, if hula hoop is no available or don't know how to use it, can only rotate his/her own body.

SUMMARY OF THE INVENTION 1. Problems to Solve:

(1) The prior exercising bicycle can only exercise legs and do nothing to your waist.

(2) You must get trained before playing this hula hoop, it is not easy to play because of its limitation in space, and can not play it everywhere.

(3) If directly turn around your waist and sway your hip, your upper body may wobble accordingly, so, it is not effective to exercise your waist and hip as required.

2. Solutions:

(1) This invention is to install an eccentric shaft in a sleeve, one end of this eccentric shaft is pivoted with one set of chair, and another end is connected to a driven gear sector so that it can drive chair to rotate when running.

(2) Driven gear sector of this invention can connect or separate eccentric shaft, when it is separated, driven gear sector can slip up/down bellow eccentric shaft, and drive eccentric shaft to rotate as well.

(3) This invention applies beneath of above said driven gear sector to mesh with gear sector, which is fixed on main shaft, and one driven sprocket or main gear is fixed on the main shaft so as to provide power to drive driven sprocket or main gear to rotate respectively, meanwhile, the driven gear sector can drive eccentric shaft to rotate chair.

(4) Power source of this invention can be either rotating shaft of pedal or decelerating motor, which can drive main shaft to rotate.

(5) This invention uses the first and second clutch assembly; wherein the first clutch assembly controls driven gear sector to drop off tooth of gear sector of this main shaft; and the second clutch assembly controls decelerating motor to drop off tooth of main gear; above said controls, namely, selection of power source, either to provide chair to drive eccentric shaft to rotate itself, or to provide rotating shaft of pedal to drive chair to rotate, or to provide decelerating motor to drive chair to rotate, or pedal and decelerating motor drive chair to rotate at the same time.

(6) Upper end of the above said sleeve of this invention applicable to bicycle, exercising bicycle and AB chair can fix one relay sleeve, so that eccentric shaft can be embedded into this relay sleeve for flexing to adjust eccentric shaft upward or downward and regulate chair according to height of user.

(7) Chair is pivoted with eccentric shaft of this invention, one adjust seat can be fixed at top of eccentric shaft, so that eccentric shaft can be adjusted properly according to its rotating radius when it is driven.

(8) This invention is applicable to exercising bicycle, bicycle or AB chair, which can select different operational modes.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1-A is the transmission plane combination sketch map of the transmission eccentric shaft of this invention.

FIG. 1-B is the exploded plane sketch map of relay shaft and driven gear sector parts of this invention.

FIG. 1-C is the combination section view of eccentric shaft and driven gear sector of this invention.

FIG. 2-A is the front implementation example map of this invention applied to bicycle.

FIG. 2-B is the zoomed map of back configuration of this invention applied to bicycle.

FIG. 2-C is the section sketch map of the combination parts of this invention applied to bicycle.

FIG. 3-A is the combination sketch map of this invention applied to bicycle.

FIG. 3-B is the section sketch map of the combination parts of this invention applied to exercising bicycle.

FIG. 4-A is the front sketch map of this invention applied to AB chair.

FIG. 4-B is the back sketch map of this invention applied to AB chair.

FIG. 5-A is the movement sketch map of this invention.

FIG. 5-B is the movement sketch map of the second clutch assembly of this invention to control the drop-off.

FIG. 6-A is the movement sketch map of this invention.

FIG. 6-B is the movement sketch map of the first clutch assembly of this invention to control the drop-off.

FIG. 7-A is the exploded view to adjust chair of this invention.

FIG. 7-B is the combination map to adjust chair of this invention.

FIG. 8-A is another implementation exploded view to adjust chair of this invention.

FIG. 8-B is another implementation combination map to adjust chair of this invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

Techniques and operations relating to this invention are described basing on bicycle, exercising bicycle and AB chair but not limited in the following preferred embodiments:

Please refer to FIG. 1-A˜C, the common structure of this invention is to fix sleeve 11 on bracket 1, bearing 12 is respectively embedded into two ends of sleeve 11, chair S is pivoted with eccentric shaft, relay shaft 21 is fixed at the lower extended section, axial runner (track) 211 is installed at bottom of this relay shaft 21, and screw thread 212 is assembled at top of this axial runner (track) 211; please refer to FIG. 1-A˜B, when eccentric shaft 2 is embedded into bearing 12, screw thread 212 is locked with nut 213 so that it is positioned at inner of bearing 12 at bottom of sleeve 11, eccentric shaft 2 in sleeve 11 can rotate bearing 12 to drive chair S to turn around.

According to above said driven gear sector 3, axial track (runner) 32 is assembled in shaft hole 31 matching axial runner (track) 211 of above said relay shaft 21, and axial runner (track) 211 of this relay shaft 21 is embedded into axial track (runner) 32 of shaft hole 31 of this driven gear sector 3 so that it can move upward/downward in axial runner (track) 211 of this relay shaft 21 and drive eccentric shaft 2 to rotate. In addition, axial runner (track) 211 of this relay shaft 21 is covered with compressed spring 314 which is positioned between nut 213 and driven gear sector 3, compressed spring 314 can be compressed and reset due to upward/downward movement of driven gear sector 3.

Therefore, gear sector 41 is meshed with bottom of above said driven gear sector 3, this gear sector 41 is fixed on main shaft 4, and driven sprocket 42 or main gear wheel 42′ is fixed at external side of main shaft 4 extending out of bracket 1.

Please refer to FIG. 2-A˜C and FIG. 3-A, B, rotating shaft of pedal 5 is fixed beside the original transmission sprocket 51 and an auxiliary sprocket 52 is assembled inside it, chain 53 connects auxiliary sprocket 52 with driven sprocket 42, in this case, auxiliary sprocket 52 and driven sprocket 42 may be driven to rotate by rotation of rotating shaft of pedal 5, meanwhile, main shaft 4 drives gear sector 41 to mesh with driven gear sector 3, and chair S may also turn around owing to rotation of eccentric shaft 2, therefore, your hip and waist may get exercised at the same time while riding the bicycle, or user just turns around his/her hip to exercise his/her waist with bearing 12 pivoting with eccentric shaft as axis without turning around rotating shaft of pedal 5, which matches bicycle 10 and exercising bicycle 20.

Please refer to FIG. 4-A,B, driven sprocket 42 fixed on above said main shaft 4 is modified as main gear wheel 42′ and one set of decelerating motor 6 is fixed in front of main shaft 4, this decelerating motor 6 is connected with transmission gear wheel 61 and mesh with main gear wheel 42′ so that decelerating motor 6 drives transmission gear wheel 61 to rotate, and also drive main gear wheel 42′ to rotate, then main shaft 4 drives gear sector 41 to rotate driven gear sector 3 and eccentric shaft 2, so that chair S can be driven to rotate automatically by auxiliary power of decelerating motor 6, which is applicable to AB chair 30.

Please refer to FIG. 4-A, B and FIG. 3-A, B, driven sprocket 42″ that is different from this main gear wheel 42′ is fixed at one side of it on main shaft 4, auxiliary sprocket 52′ that is different from transmission sprocket 51 is also fixed at one side of it and chain 53′ connects them so that main shaft 4 drives gear sector 41 to mesh with driven gear sector 3 for rotation, that may drive eccentric shaft 2 to rotate, chair S is driven to rotate easily by auxiliary power of decelerating motor 6 and rotating shaft of pedal 5, which is applicable to exercising bicycle 20.

Please refer to FIG. 3-A and FIG. 4-A, adjuster A and B described in the following are the common device of sport apparatus, and guide rope A1 and B1 wind adjuster A and B, they are similar to line of bicycle's brake block. Because they are common components applied to this invention, so, we don't make further descriptions herein.

Please refer to FIG. 3-A, FIG. 4-A˜B, FIG. 5-A˜B, FIG. 6-A˜B, the first clutch assembly 7 can control upward/downward movement of driven gear sector 3; wherein the first clutch assembly 7 is to insert splint 71 into ring groove 33 (such as FIG. 1-B) that is made between compressed spring 314 and driven gear sector 3, fixing lever 72 is passed through terminal of splint 71, which is fixed on board 74 after covering spring 73, so that spring 73 is positioned between splint 71 and board 74, then fasten guide rope A1 of adjuster A with board 74, rope collar A2 to coat guide rope A1 is blocked at splint 71 with bolt A3, which is positioned between fixing lever 72 and driven gear sector 3 of relay shaft 3, thus, adjuster A adjusts guide rope A1 to control splint 71 so that compressed spring 314 pushes upward driven gear sector 3 which may use above said axial track 32 to slide upward along axial runner 211 of relay shaft, driven gear sector 3 drops off mesh of gear sector 41, so, user can directly rotate chair S at will with eccentric shaft 2 as axis, or loose guide rope A1 so that spring 73 directly pushes back splint 71, meanwhile, driven gear sector 3 can also be meshed with gear sector 41 basing on recovery of compressed spring 314, then eccentric chair S moves with rotating shaft of pedal 5, therefore, this sport apparatus can exercise your leg, waist, hip at the same time, also user can select power source as required.

Please refer to FIG. 3-A, FIG. 4-A˜B, FIG. 5-A˜B, FIG. 6-A˜B, pivot seat 62 of above said decelerating motor 6 is pivoted with front end of above said bracket 1 with pivot shaft 621, and set fixing seat 622 on pivot seat 62, which is to fix the 2^(nd) clutch assembly 8; above said 2^(nd) clutch assembly is to pass limit lever 81 through fixing seat 622 and then cover spring 82, fix terminal of limit lever 81 on hook 83, meanwhile, fasten guide rope B1 of adjuster B with hook 83, sling B2 of guide rope B1 is positioned at fixing seat 622 with bolt B3, so, adjuster B can adjust guide rope B1, bolt B3 can strain or loose guide rope to control pivot seat 622, so that it can sway forward with pivot shaft 621 as axis, transmission gear 61 meshes with this main gear wheel 42′ to run together; push open pivot seat 622 with spring 82 when loosing, transmission gear 61 drops off main gear wheel 42′ so as to control decelerating motor 6 and rotating shaft of pedal 5.

Please refer to FIG. 2-C and FIG. 3-B, above said sleeve 11 is applied to bicycle 10, exercising bicycle 20 and AB chair 30, relay sleeve 9 is fixed on it and connected with relay shaft 21, eccentric shaft 2 can be embedded into relay sleeve 9 for flexing, then lock relay sleeve 9 with lock bolt 91 so as to lean against eccentric shaft 2, therefore, eccentric chair S can be adjusted according to height of user.

Please refer to FIG. 7-A and FIG. 8-A, chair S is pivoted with eccentric shaft 2, regulating seat S1 is fixed on top of eccentric shaft 2, shaft lever S22 is set at bottom of chair S in axial direction, front of regulating lever S2 is connected with shaft collars S21 so that shaft lever S22 can be embedded into shaft collars S21 for chair S to rotate automatically, and regulating lever S2 is embedded into regulating seat S1 to adjust spacing between chair S and eccentric shaft 2, then pass fixing bolt S3 through regulating seat S1 to position regulating lever S2, so that eccentric shaft 2 can be adjusted properly according to its rotating radius when driven; above said regulating lever S2 can be embedded into regulating seat S1 from both ends, so that eccentric shaft 2 produces different offset distance to shaft lever S22 of chair S, it can rotate and produce different rotating radius to change rotating radian as required. 

1. Chair-rotating control mechanism applied to sport apparatus as follows: Sleeve which is installed on bracket, bearing is respectively embedded into two ends of this sleeve; Eccentric shaft, its top is pivoted with chair and lower section extends downward to become relay shaft, screw thread section is made at proper position of this relay shaft's lower section to screw on nut, so that eccentric shaft is fixed at bearing of sleeve, meanwhile, nut is screwed on against inner of bearing so as to limit relay shaft to rotate inside bearing of sleeve. Chair which is pivoted with top of eccentric shaft, so that user can move around along with chair but not rotate together with eccentric shaft. Driven gear sector which is connected to relay shaft and meshed with gear sector of main shaft so as to drive eccentric to rotate; Rotating shaft of pedal, an auxiliary sprocket wheel is fixed on this shaft; Main shaft which fixes gear sector and sprocket wheel, and connect sprocket wheel with this auxiliary sprocket wheel with chain so that this gear sector meshes with driven gear sector; Therefore, rotating shaft of pedal drives main shaft to rotate, gear sector drives driven gear sector to rotate, and then drives eccentric shaft to rotate, so that chair can move in circle, user can exercise his/her hip and waist at the same time when riding such bicycle.
 2. Chair-rotating control mechanism applied to sport apparatus as follows: Sleeve which is installed on bracket, bearing is respectively embedded with two ends of this sleeve; An eccentric shaft, its top is pivoted with one chair and lower section extends downward and become relay shaft, screw thread section is made at proper position of this relay shaft's lower section to screw on nut, so that eccentric shaft is fixed at bearing of sleeve, meanwhile, nut is screwed on against inner of bearing so as to limit relay shaft to rotate inside bearing of sleeve. Chair which is pivoted with top of eccentric shaft, so that user can move in circle along with chair while eccentric shaft is rotating but not rotate together. Driven gear sector which is connected with this relay shaft and meshed with gear sector of main shaft so as to drive eccentric to rotate; Rotating shaft of pedal, an auxiliary sprocket wheel is fixed on this shaft; Main shaft which fixes gear sector, sprocket wheel and main gear wheel, and connects sprocket wheel and this auxiliary sprocket wheel with chain so that this gear sector meshes with driven gear sector; Decelerating motor which connects transmission gear wheel and meshes with main gear; Therefore, rotating shaft of pedal or decelerating motor drives main shaft to rotate, meanwhile, gear sector is to drive driven gear sector to rotate, that then rotate eccentric shaft, so, chair may move in circle. Chair is driven by rotating shaft of pedal and decelerating motor, or only decelerating motor automatically drives chair to turn round.
 3. Chair-rotating control mechanism applied to sport apparatus as follows: Sleeve which is installed on bracket, bearing is respectively embedded with two ends of this sleeve; Eccentric shaft, its top is pivoted with chair and lower section extends downward and become one relay shaft, screw thread section is made at proper position of this relay shaft's lower section to screw on nut, so that eccentric shaft is fixed at bearing of sleeve, meanwhile, nut is screwed on against inner of bearing so as to limit relay shaft to rotate inside bearing of sleeve. Compressed spring which is covered onto axial runner of relay shaft and is positioned between sleeve and driven gear sector; Chair which is pivoted with top of eccentric shaft, so that user can move in circle along with chair while eccentric shaft is rotating but not rotate together. Driven gear sector which is connected with this relay shaft and meshed with gear sector of main shaft so as to drive eccentric to rotate; and ring groove, which is fixed on this driven gear sector to insert splint; Rotating shaft of pedal, auxiliary sprocket wheel is installed on it; Main shaft which fixes gear sector, sprocket wheel and main gear wheel, and connects sprocket wheel and this auxiliary sprocket wheel with one chain, so that this gear sector meshes with driven gear sector; Decelerating motor which connects transmission gear wheel and meshes with main gear wheel; First clutch assembly which is composed of splint, fixing lever, spring, adjuster, board, it is fixed at where can control driven gear sector, the splint is inserted into ring groove of driven gear sector, adjuster is to control this driven gear sector so that driven gear sector can mesh with or drop off gear sector; Second clutch assembly which is composed of fixing seat, limit lever, spring, adjuster and hook fixed on pivot seat of decelerating motor, adjuster controls pivot seat to sway with pivot shaft as axis, so that transmission gear meshes with or drop off main gear; Therefore, rotating shaft of pedal or decelerating motor can simultaneously or respectively drive driven gear sector to rotate eccentric shaft, then apply first clutch assembly to control driven gear sector to drop off gear sector of main shaft, so that chair can turn round automatically with eccentric shaft as axis. Also apply second clutch assembly to control transmission gear of decelerating motor to drop off main gear of main shaft, thus, rotating shaft of pedal can move driven gear sector, so, user can turn around hip and waist at the same time while rotating shaft of pedal.
 4. As claimed in claim 1, 2, 3, it is chair-rotating control mechanism applied to sport apparatus, wherein axial runner is made in lower part of screw thread of eccentric shaft, and axial track matching axial runner is made in Peg-in-Hole of driven gear sector, so that this axial track can be embedded into this axial runner, driven gear sector can move upward/downward within this axial runner.
 5. As claimed in claim 1, 2, 3, it is chair-rotating control mechanism applied to sport apparatus, wherein one relay sleeve can be fixed on top of this sleeve, which is also connected with relay shaft, eccentric shaft can be embedded into this relay sleeve for flexing, then lock this relay sleeve with lock bolt so that it leans against this eccentric shaft, eccentric chair is thereby adjusted according to height of user.
 6. As claimed in claim 1, 2, 3, it is chair-rotating control mechanism applied to sport apparatus, wherein chair is pivoted with eccentric shaft, adjust seat is fixed at top of eccentric shaft, and shaft lever is assembled at bottom of chair, with support of shaft collars connecting to front of adjust lever, this shaft lever embedded into this shaft collars can let chair rotate freely, furthermore, this adjust lever can be embedded into from two ends of adjust seat, which can adjust distance between chair and eccentric shaft, then pass fixing bolt through adjust seat to position adjust lever, so that eccentric shaft can be adjusted properly as required when driven.
 7. As claimed in claim 1, 2, 3, it is chair-rotating control mechanism applied to sport apparatus, wherein features of the structure to connect driven gear sector and relay shaft as follows: Axial track (runner) is made in hole of this driven gear sector; This relay shaft, axial runner (track) is fixed matching this axial track (runner). Therefore, axial runner (track) of this relay shaft is embedded into axial track (runner) of driven gear sector's hole, so that driven gear sector can move upward/downward in axial runner (track) of this relay shaft, which can drive eccentric shaft to rotate.
 8. As claimed in claim 2, 3, it is chair-rotating control mechanism applied to sport apparatus, wherein the decelerating motor is fixed at pivot seat, and this pivot seat is pivoted to this bracket with pivot shaft, moreover, fixing seat also is fixed at this pivot seat, which can fix 2^(nd) clutch assembly, so that pivot seat can drive decelerating motor to sway forward/backward.
 9. As claimed in claim 3, it is chair-rotating control mechanism applied to sport apparatus, wherein spring can cover onto axial runner of relay, so that the compressed spring is positioned between nut and driven gear sector, which will be compressed and reset by driven gear sector.
 10. As claimed in claim 3, it is chair-rotating control mechanism applied to sport apparatus, wherein the first clutch assembly is comprised by following components: Splint which is inserted into ring groove set between compressed spring and driven gear sector; Fixing lever is fixed at terminal of this splint; Spring is covered onto this fixing lever and fixed on the board, so that this spring is positioned between splint and board. Adjuster, its guide rope fastens this board, and rope collars coating this guide rope is limited within this splint with one bolt and positioned between fixing lever and relay shaft of driven gear sector; Thus, this adjuster can adjust its guide rope and control splint to push upward compressed spring or release driven gear sector, so that this driven gear sector can move up/down in axial runner of relay shaft with above said axial track, so, driven gear sector can drop off or mesh with gear sector, therefore, user can select power source at will.
 11. As claimed in claim 3, it is chair-rotating control mechanism applied to sport apparatus, wherein the second clutch assembly is comprised by following components: Pivot seat where one fixing seat is fixed properly. Limit lever which passes through this fixing seat and fixes on hook; Spring which covers onto limit lever; Adjuster is to fasten the guide rope to this hook, and rope collar of this guide rope is positioned at this fixing seat with one bolt; Thus, adjuster is to adjust guide rope and bolt is to strain or loose the guide rope so as to control this pivot seat to sway with pivot shaft as axis, transmission gear thereby drop off or mesh with main gear.
 12. As claimed in claim 1, it is chair-rotating control mechanism applied to sport apparatus, wherein this mechanism is applicable to bicycle and exercising bicycle.
 13. As claimed in claim 2, 3, it is chair-rotating control mechanism applied to sport apparatus, wherein this mechanism is applicable to exercising bicycle.
 14. As claimed in claim 2, it is chair-rotating control mechanism applied to sport apparatus, wherein this mechanism can also be applicable to AB chair if not equipped with auxiliary sprocket and rotating shaft of pedal. 